Atif Saeed Ch.

By the mid-to-late 1930s, the time for binary numbering had finally come.
John Atanasoff, a physics professor at Iowa State College, decided - almost against his better judgement - to base his version of a computer on the binary system.
Atanasoff was convinced that the two digit binary system - with its benefit of reducing ten symbols to two in his machine's circuitry - would increase speed and efficiency, but he was concerned that users might be confused by the transition from the familiar decimal system.
Nevertheless, he decided to go ahead and, by 1939, Atanasoff had built a prototype binary computer.